Which one is right??

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.

Respond fast need this answer asap still need to do about 3 pages of work to turn in tomorrow it be 2: 26am here

Describe why the teapot dome scandal occurred and why it is considered one of america's biggest scandals. (nm history)